Now let's build a game. Biff needs to collect 5 power cells. One complication... the moon base is crawling with zombies! Avoid the zombies while collecting 5 power cells to win the game. But watch out! Touch a zombie and you will lose your health.
advanced costume handling, simple sound playing, functions, simple loops, basic math, simple messaging, simple events, direction and turning, simple motion, visibility, graphic effects, delays,